Title :
Analysis of buried-channel waveguides and couplers: scalar solution and polarization correction
Author :
Huang, Weiping ; Haus, Hermann A. ; Yoon, Hyun N.
Author_Institution :
Dept. of Electr. Eng., MIT, Cambridge, MA, USA
fDate :
5/1/1990 12:00:00 AM
Abstract :
Buried-channel waveguides and couplers are analyzed by perturbations and variational methods under the scalar approximation. Propagation constants of the first- and higher-order modes are calculated. When far from cutoff, both methods give nearly identical results. Near cutoff, the variational method predicts the dispersion characteristics more accurately. The methods can be easily implemented on a PC to produce the dispersion characteristics as well as the field patterns. Correction to the scalar solutions that accounts for the polarization effects due to the refractive index discontinuity and the material birefringence is included in the analysis
Keywords :
integrated optics; light polarisation; optical couplers; optical dispersion; optical waveguide theory; perturbation theory; variational techniques; buried-channel waveguides; cutoff; dispersion characteristics; field patterns; higher-order modes; integrated optics; material birefringence; optical couplers; perturbation methods; polarization correction; polarization effects; refractive index discontinuity; scalar approximation; scalar solutions; variational methods; Birefringence; Couplers; Optical materials; Optical waveguides; Partial differential equations; Perturbation methods; Polarization; Propagation constant; Refractive index; Tensile stress;
Journal_Title :
Lightwave Technology, Journal of
